Keep listing saved parks when the parks folder holds an oddly named file

Extension/Objects/ParkEditor/Test/park_editor_tests.cpp

@@ -275,8 +275,11 @@ int main(int argc, char **argv) {
         bad.objects[0].rotation = {};
         rejects([&] { save_park(directory, name, bad); });
         check(load_park(directory, name).objects == park.objects, "Rejected save overwrote previous park");
+        const auto stray = directory / L"\U0001F6F9 notes.txt"; // No ANSI code page can hold this name.
+        std::ofstream(stray).put('x');
         const auto names = list_parks(directory);
         check(std::find(names.begin(), names.end(), name) != names.end(), "Saved park missing from browser");
+        std::filesystem::remove(stray);
         std::filesystem::remove(directory / (name + ".park.json"));
         // Park mods: <data>/Mods/<folder>/manifest.json + parks/<map>.park.json.
         {

Extension/Objects/ParkEditor/park_document.cpp

@@ -1,4 +1,5 @@
 #include "park_document.h"
+#include "Engine/Vfs/mod_list.h"
 #include <Windows.h>
 #include <algorithm>
 #include <fstream>
@@ -80,7 +81,7 @@ std::vector<std::string> list_parks(const std::filesystem::path &directory) {
          !error && it != end && names.size() < 256; it.increment(error)) {
         if (!it->is_regular_file(error))
             continue;
-        auto name = it->path().filename().string();
+        auto name = mods::ascii_path(it->path().filename());
         if (!name.ends_with(".park.json"))
             continue;
         name.resize(name.size() - 10);